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B20 stroker cranks 120-130 1967

posted by  someone claiming to be ozzi on  Sat Jan 11 09:18 CST 2003 [RELATED]

Well you want to move the center out 4.5 mm, so when it completes a full rotation the total increase is 9mm. or i might have this wrong, , , luckily my machinist is a lot smarter than me, so he knows how to do it -
thats a good point, i'll ask about where the oil passages ended up
Topi didn't weld, he just offset ground the crank, infact he told me which bearings to buy as he used the same Mitsubishi bearings on his. I heard that adding metal to the outsides of the journal to keep the same diameter is a difficult and expensive process, so knowing that his cranks held up well i decided to do it the same way.

cheers
ozzi
'67 220s






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